From owner-freebsd-hackers@FreeBSD.ORG Wed Jul 14 15:52:58 2010 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D82A7106566B for ; Wed, 14 Jul 2010 15:52:58 +0000 (UTC) (envelope-from ath@niksun.com) Received: from anuket.mj.niksun.com (gwnew.niksun.com [65.115.46.162]) by mx1.freebsd.org (Postfix) with ESMTP id B00008FC17 for ; Wed, 14 Jul 2010 15:52:57 +0000 (UTC) Received: from NCES01.mj.niksun.com (nces01.mj.niksun.com [10.25.8.17]) by anuket.mj.niksun.com (8.13.6/8.13.6) with ESMTP id o6EFPWeb042035 for ; Wed, 14 Jul 2010 11:25:33 -0400 (EDT) (envelope-from ath@niksun.com) Received: from nces01.mj.niksun.com ([10.25.8.17]) by NCES01.mj.niksun.com ([10.25.8.17]) with mapi; Wed, 14 Jul 2010 11:25:31 -0400 From: Andrew Heybey To: "freebsd-hackers@freebsd.org" Date: Wed, 14 Jul 2010 11:25:29 -0400 Thread-Topic: 8.1RC2 amd64 machine check question Thread-Index: AcsjaMtWZG4bgY/oSsWxS3hDJRWGng== Message-ID: <6E83197B-9DD5-4C7E-846D-AD176C25464D@niksun.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.95.3 at anuket.mj.niksun.com X-Virus-Status: Clean Subject: 8.1RC2 amd64 machine check question X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Jul 2010 15:52:58 -0000 Got the following in /var/log/messages on my one-week-old amd64 box running= 8.1RC2: Jul 13 20:30:17 spaten kernel: MCA: Global Cap 0x0000000000000106, Status 0= x0000000000000000 Jul 13 20:30:17 spaten kernel: MCA: Vendor "AuthenticAMD", ID 0x100f43, API= C ID 0 Jul 13 20:30:17 spaten kernel: MCA: CPU 0 COR GCACHE LG EVICT error Jul 13 20:30:17 spaten kernel: MCA: Address 0x2a49464c I read through sys/amd64/amd64/mca.c and it seems to be a correctable error= on my L3 cache, but I am not 100% sure I am interpreting it correctly. Motherboard is an ASUS M4A785TD-V EVO w/ 2x 2GB ECC RAM and and an AMD Phen= om X2: FreeBSD 8.1-RC2 #0: Tue Jun 29 20:21:55 UTC 2010 root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: AMD Phenom(tm) II X2 550 Processor (3113.67-MHz K8-class CPU) Origin =3D "AuthenticAMD" Id =3D 0x100f43 Family =3D 10 Model =3D 4 S= tepping =3D 3 Features=3D0x178bfbff Features2=3D0x802009 AMD Features=3D0xee500800 AMD Features2=3D0x37ff TSC: P-state invariant real memory =3D 4294967296 (4096 MB) avail memory =3D 4112510976 (3921 MB) ACPI APIC Table: <041510 APIC1115> FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs FreeBSD/SMP: 1 package(s) x 2 core(s) cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 My questions are: 1. Did I interpret the message correctly (correctable error on my L3 cache)= ? 2. Is it anything to worry about? Or is this just one of those things that= happens but now it gets logged whereas before I was blissfully ignorant? thanks, andrew